4.15 15-0859 Subject: On-Call Environmental And Hazardous Materials Consulting Contracts From: Oakland Public Works Department Recommendation: Adopt The Following Pieces Of Legislation: 1) Resolution Authorizing The City Administrator To Enter Into Professional Services Agreements With Erler & Kalinowski, Inc., Haley & Aldrich, Inc., Northgate Environmental, Inc., Rincon Consultants, Inc., SLR International Corp., Terraphase Engineering, TRC Companies, Inc., And Weiss Associates For On-Call Environmental Consulting Services In An Amount Not To Exceed Five-Hundred Thousand Dollars ($500,000) For A Three-Year Period From July 1, 2016, Through June 30, 2019; And